Applied anatomied study in bilobed micro-flap of second dorsal metacarpal artery and dorsal digital artery
10.3760/cma.j.issn.1001-2036.2019.06.011
- VernacularTitle: 第2掌背动脉-指背动脉蒂双叶微皮瓣的应用解剖
- Author:
Chunbo YU
1
;
Peng LIU
2
;
Yachuang LIANG
1
;
Qinghao ZHAO
3
;
Zihai DING
3
;
Zhifeng ZHANG
1
Author Information
1. Department of Hand and Foot Surgery, Dongguan Integrated Traditional Chinese Medicine and Western Medicine Hospital, Dongguan, Guangdong Province 523819, China
2. Department of Burn and Plastic, Guangzhou Red Cross Hospital, Guangzhou 510220, China
3. Institute of Minimally Invasive Surgery Anatomy, Southern Medical University, Guangzhou 510515, China
- Publication Type:Journal Article
- Keywords:
Second dorsal metacarpal artery;
Finger web artery;
Dorsal digital artery;
Bilobed flap;
Applied anatomy
- From:
Chinese Journal of Microsurgery
2019;42(6):562-565
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe the location and the distribution of distal 1/3 segment of the second dorsal metacarpal artery, the finger web artery and the dorsal digital artery, and to provide anatomical data for repairing the soft tissue defect on the hand with bilobed or multi-lobed micro-flap with second metacarpal dorsal artery-dorsal digital artery.
Methods:From June, 2018 to March, 2019, 34 fresh adult upper limb specimens were selected. The radial and ulnar arteries were perfused with red latex in 24 specimens. The radial and ulnar arteries were infused with cast materials to make cast specimens in 10 specimens. The location and distribution of the distal 1/3 segment of the second dorsal metacarpal artery, the finger web and the dorsal digital artery were observed.
Results:The distal 1/3 segment of second dorsal metacarpal artery extended (4±1) cutaneous branches, and continued to become the finger web artery at the plane of the articular surface. The length of the finger web artery was (2.5±0.6) cm, and there were 4 types anastomic methods of communication with arteries. The second dorsal metacarpal artery extended 2 finger dorsal artery to the proximal dorsal skin of the middle finger and index finger. The length of dorsal digital artery was 2.6±0.4 cm and the diameter was 0.2±0.1 mm. Four to 6 micro-cutaneous branches were extended and consistent with the nearby skin cutaneous branches.
Conclusion:The distal segment of the second dorsal metacarpal artery and the dorsal digital artery is anatomically constant. The distal segment of the second dorsal metacarpal artery and dorsal digital artery are the pedicle for the design of the bilobed flap of middle finger and index finger to repair small soft tissue defect on the thumb and purlicue.
